Punching-machine.



No. 791,146. 4 I PATENTED' MAY30,19O5-.

, G.R.GETHER. PUNGHING MACHINE.

APPLICATION FILED JULY 16. 1903.

: V T n Ill i ll ill/(10111! mm, I

Patented May 30, 1905 PATENT OFFICE.

CHARLES R. GETHER, OF WHITEFISH BAY, WISCONSIN.

PUNGHING'PIVIACHINE,

SPECIFICATION forming part of Letters Patent No. 791,146, dated May 30,1905.

Application filed July 16, 1908. Serial No. 165,745. 2

To all ,whom, it may concern.-

Be it known that I, CHARLES R. GETHER, .a citizen of the United States,residing at VVhitefish Bay,in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements inPunching-Machines, of which the following is a specification, referencebeing had to the accompanying drawings, forming a part thereof.

This invention relates particularly to machines for simultaneouslypunching a series of holes in paper or similar material. Its mainobjects are to avoid lateral thrust upon the punches and the consequentbinding and unequal wear of the same in their guides or bearings and inthe opposing dies, to firmly support the punches and dies in theirproper working relation to each other, to dispense with springs forretracting the punches from the dies, to provide for readily varying thenumber, size, shape, and arrangement or relative positions of the holesto be punched, and generally to improve the construction and operationof machines of this class.

The invention consists in certain novel features of construction and inthe peculiar arrangement and novel combinations of parts hereinafterparticularly described, andpointed out in the claims.

In the accompanying drawings like characters designate the same parts inthe several figures.

Figure 1 is a vertical cross-section from front to rear on the line 1 1,Fig. 2, of a machine embodying my invention. Fig. 2 is a verticallongitudinal section thereof on the line 22, Fig. 1. Fig. 3 isa planView of the machine, certain parts being broken away;'

and Fig. 4: is an inverted plan view of one of the punch and die sets.

Upon a suitable base a, having a longitudinally-slotted openingb-therein near its front side, are adjustably mounted a number of punchand die sets, each comprising a head or guide block 0, a punch d, guidedtherein, and a die-plate 6, attached thereto and having an openingregistering with the punch. Attheir rear ends the die-plates e areslotted length-h wise to engage ribs f on the rear depending 5 ends ofthe heads 0, to which they are attached by screws, as shown in Fig. 4.The shanks of the punches d are fitted and guided in vertical sockets inthe heads 0 and are formed at their upper ends with rearwardly-presentedtransverse notches or grooves. are supported and held in any desiredposition with relation to each other and to the base by alongitudinally-slotted horizontal bar 6, to which they are adjustablyfastened by set-screws j. ends to standards in, rising from the ends ofthe base, and its position is accurately determined independently of thebolts which fasten it to said standards by lugs Z, cast on saidstandards, so that when the heads are clamped 5 by the screws 7' to saidbar the die -,plates 0 will rest squarely upon the base a over the slotor opening 5 therein. The punch-guiding heads and the associateddie-plates are thus firmly supported and securely held in the 7 properworking relation to each other,and the several punch and die sets may bereadily adjusted or removed and replaced, so that the machine may beprovided with any desired number and kind of punches and dies arranged 75 therein according to the number, size, shape, and arrangement of theholes to be punched. m is a vertically-movable thrust-bar formed with alongitudinal tongue loosely engaging the transverse notches or grooves1n the upper ends of the punches cl. It is attached to the front ends ofhorizontally-disposed arms a, secured at their rear ends on a rod 0,which is supported parallel with the bar on by bearings in standards 19,rising from the base a, at 5 the rear side thereof.-

. qis a rocker-bar journaled at its ends in the standards is, parallelwith the bar we and above the arms a, with which it is eccentricallyconnected by links a". lated by means of a treadle, crank, or eccentric,connected by a rod 8 with' an arm 6' thereon or by other suitable means.When the rocker-bar is operated by hand or foot through a lever orcrank-arm, levers a, ful- 'crumed to the standards 70 and engaging thebar m and springs 4), connecting the other ends of said levers with thebase, are provided for retracting the thrustbar and punches after theyhave been depressed; but

The heads 0 55 The bar iis bolted at its 60 It may be turned-or oscil- 9,when it is operated by a power connection through-acrank or eccentricthe retracting leversand springs may be dispensed with, the crank oreccentric serving both to depress and retract the thrust-bar andpunches.

The tongue-and-groove connection between the thrust-bar and punchesenables me to dispense with a retracting-spring for each individualpunch and also allows for the ready adjustment, removal, and replacingof the punches.

The rod 0, on theaxis on which the arms a swing, is located at asuflicient distance from the bar on to avoid any considerable lateralmovement of the said bar within the limits of its vertical movement andto thus prevent lateral thrust on the punches and binding andunequalwear thereof in their bearings and the opposing dies. The bar aacting against the punches substantially in the direction of their axes,wear on their engaging faces is also reduced andan equal depression andthe proper operation of all the punches, whatever positions they mayoccupy with relation to the thrust-bar, are secured.

Secured to the front part of the base a is a scale w, having its upperface flush with the upper face of the die-plates e, and m is a leafattached to the front side of the base on a level with the scale w forthe purpose of supporting the paper, cardboard, or other material-to bepunched.

The location of the holes made by the punches in the paper or othermaterial for any given arrangement of the punch sets is determined inone direction by gages y, adjustably connected with the several heads 0,and-in the other direction by a gage .2, adjustably attached to the leafThe gages y are provided with stems 2, passing rearwardly through holesin the holder 0 and adjustably held therein by set-screws 3, and thegage 2 has a .slotted arm 4, adjustably secured by a set-screw 5 to theleaf M'yimproved punching-machine operates as follows: The sheets ofpaper or other material to be punched being placed in a pile on the leaf:1: are inserted between the punches and dies against the gages 1/ andare carried sidewise against the gage e. The rocker-bar q is then turnedbackward by means of its operating connection, and the bar a is therebythrust downward against the upper ends of the punches (Z, which aresimultaneously forced through the paper or other material into thedie-plates e, the punchings dropping through the opening 5 in the base.Any number and arrangement of holes of any desired shape may be made byplacing the required number of punch sets having punches and dies of therequisite size and shape in the machine and setting them in the properrelative positions. To vary the relative arrangement of the holes, thescrews j are loosened and the punch sets are simply moved lengthwise ofthe bar c' and the base, and when properly adjusted they are secured inplace by tightening said screws. To change the number and shape of theholes, the required number of punch sets are added or withdrawn, orpunch sets having punches and dies of different shapes are substitutedby simply turning the screws j out of the heads 0 to be removed andinserting them through the slot in the bar a in the heads of the diesets which are placed in the machine.

Various changes in the minor details of construction and arrangement ofparts may be made without departing from the principle and intendedscope of my invention.

I claim 1. In a punching-machine the combination of abase havingalongitudinal opening, punch and die sets each comprising a head, apunch and adie which are adjustable together and independently of othersets over and lengthwise of said opening, a vertically-movable thrustbarengaging the upper ends of the several punches and supported byvertically-swinging pivoted arms, and a rocker-bar adapted to depresssaid thrust-bar and simultaneously operate a number of punches,substantially as described.

2. In a punching-machine the combination of a base havingalongitudinalopening, punch and die sets each comprising a head, a punch and a die,which are adjustable together and independently of other sets over andlengthwise of said opening, a vertically-movable thrustbar engaging theupper ends of the several punches and supported by vertically-swingingpivoted arms, a rocker-bar adapted to depress said thrust-bar andsimultaneously operate a number of punches, and a spring tending to liftthe thrust-bar and withdraw the punches, substantially as described.

3. In a punching-machine the combination of a base havingalongitudinalopening, punch and die sets adjustable thereon over and lengthwise ofsaid opening,avertically-movablehorizontal thrust-bar engaging the upperend of each punch and carried by horizontally-disposed arms pivoted at adistance therefrom to fixed supports, a rocker-bar parallel with saidthrust-bar, and connected by links with said arms, and means for turningsaid rocker-bar, substantially as described.

4. In a punching-machine the combination of a base having a longitudinalopening, asupporting-bar above and parallel with said opening, punch anddie sets adjustable thereon, over and lengthwise of said opening, andeach comprising a head having a lateral bearing fitted to said bar,means for adjustably fastening each head to said bar, and means forsimultaneously operating a number of punches, substantially asdescribed.

5. In a punching-machine the combination of a base, alongitudinally-slotted supportingbar above and parallel with said base,punch IIS sets each comprising a head detachably secured by aclamping-screw to said bar and adjustable lengthwise thereof,substantially as described.

6. In a punching-machine the combination of a base having a longitudinalopening, punch sets adjustable thereon over and lengthwise of saidopening and each comprising a head, a punch guided therein and a dieregistering with said punch, a vertically-movable horizontal thrust barloosely engaging transverse grooves in the upper ends of the punches andmeans for operating said thrust-bar and simultaneously depressing andretracting anumber of punches, substantially as described.

7 In a punching-machine the combination of a base having a longitudinalopening, punch and die sets adjustable thereon over and lengthwise ofsaid opening, a vertically-movable In witness whereof I hereto affix mysigna- 3 ture in presence of two witnesses.

CHARLES R. GETHER.

Witnesses:

OHAS.'L. Gross,

ALICE E. GOSS.

